CALIFORNIA WATER SERVICE-S SAN FRANCISCO
Community Water System · California · SAN JOSE
PWSID: CA4110009
Compliant
Population Served
64.1K
Service Connections
16.4K
Total Violations
8
Health-Based Violations
3
Lead & Copper Data
Lead Level
Caution1.90 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- SAN JOSE
- ZIP Code
- 95112
- Counties Served
- San Mateo
- Cities Served
- San Jose
- Open Violations
- 0
- State
- California
Violation Summary
8
Total Violations
3
Health-Based
0
Open Now
Most recent violation: 2013-06-01
Explore California Water Quality
See all water systems, lead data, and violation trends for California.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: CA4110009.SafeWater Home